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Influence of Large Track Maintenance Machine on Sleeper Supporting Stiffness
Abstract:
Large track maintenance machine is one of the most important components of modernization of rail technical equipment. The sleeper supporting stiffness after large track maintenance operation has an effect on the safety and stability of train operation. This article make some conclusions through the analysis the influence of large track maintenance machine operation on sleeper supporting stiffness. It is indicated that during the maintenance operation, ballast compactness is enhanced and the supporting stiffness increases by tamping operation, but the supporting stiffness decreases due to the effect of stabilizing machine. After ballast cleaning operation, the supporting stiffness decreases to 10% of the original state, but back to 70%~110% of the original state after stabilizing operation. The influence of supporting stiffness on safety and stability of train operation should be taken into consideration in determining the allowable running speed after cleaning operation.
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Pages:
1115-1119
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Online since:
April 2014
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© 2014 Trans Tech Publications Ltd. All Rights Reserved
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